Multiply the binomials:
(3x + 4)(5x - 2)
Final answer
Option B is the final answer
Answer:
B
Step-by-step explanation:
Rewriting in slope-intercept form.
x - 2y = 0
Add -x on both sides.
- 2y = 0 - x
Divide both sides by -2.
y = 0/-2 - x/-2
y = 0 - - 1/2x
y = 0 + 1/2x
y = 1/2x + 0
The slope is 1/2, the y-intercept is at (0, 0).
Answer:
10.8
Step-by-step explanation:
To find (f/g)(5), find f(5) and (g5) then divide the values.
f(5) = 7 + 4(5) = 27
g(5) = 1/2 (5) = 2.5
27/2.5 = 10.8
Answer: n = 14
Step-by-step explanation: margin of error = critical value × σ/√n
Where σ = population standard deviation = 1
n = sample size = ?
We are to construct a 99% confidence interval, hence the level of significance is 1%.
The critical value for 2 tailed test at 1% level of significance is gotten from a standard normal distribution table which is 2.58
Margin of error = 0.7
0.7 = 2.58×1/√n
0.7 = 2.58/√n
By cross multipying
0.7×√n = 2.58
By squaring both sides
0.7^2 × n = 2.58^2
0.49 × n = 6.6564
n = 6.6564/0.49
n = 14
